140133451 has 8 divisors (see below), whose sum is σ = 142331904. Its totient is φ = 137952360.

The previous prime is 140133421. The next prime is 140133463. The reversal of 140133451 is 154331041.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is not a de Polignac number, because 140133451 - 2⁵ = 140133419 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (140133421) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 12426 + ... + 20848.

It is an arithmetic number, because the mean of its divisors is an integer number (17791488).

Almost surely, 2^140133451 is an apocalyptic number.

140133451 is a deficient number, since it is larger than the sum of its proper divisors (2198453).

140133451 is a wasteful number, since it uses less digits than its factorization.

140133451 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 8681.

The product of its (nonzero) digits is 720, while the sum is 22.

The square root of 140133451 is about 11837.7975569782. The cubic root of 140133451 is about 519.4143443448.

Adding to 140133451 its reverse (154331041), we get a palindrome (294464492).

The spelling of 140133451 in words is "one hundred forty million, one hundred thirty-three thousand, four hundred fifty-one".